Means for inserting or seating the outer races of ball bearings, bushings, and the like in machine housings



July 3, 1928. 1,675,568

A. C.,LYEN ETAL v "BANS FOR INSERTING O EATING THE OUTER RACES OF BALL BEARINGS, BUSHING A TH IKE IN' MACHINE HOUSINGS ed Aug 1926 \5 Sheets-Shayl WITNESSES- I I IN\VIENT R XHWW W L? RACES OF BA INE HOUSING 1x. ANS FOR INSERTIN EARINGS, BUSHING July 3, 1928.

C. LYEN ET AL G 0R SEATING THE oursa LL 5 ND THE LIKE IN MACH s F d Aug. 4, 1926 s Sheets-Sheet 2 ME B Jul 3, 1928. 1,675,568

C. LYEN ET AL A. MEANS R INSER'I'ING OR SEATING THE OUTER RACES OF BALL BEAR S, BUSHINGS, AND THE LIKE IN IIACHINE HOUSINGS Filed Aug. 4, 19 3 Sheets-Sheet 3 F77 Fig.6.

. 1 INVEN RS A g4 MW 4 Patented July 3, 1928.

UNITED STATES PATENT OFFICE.

ANDREW C. LYEN-AND CHARLES W. MORGAN, OF CHICAGO, ILLINOIS.

MEANS FOR ,INSEBTING OBSEATINGTHE OUTER RACESOF BALL BEARINGS, BUSH- INGS, AND THE LIKE IN MIA-CHIN HOUSINGS.

. 3 Application filed-August 4, 1326. Serial No. 127,077.

Our invention relates to appliances used for seating the outer races of ball-bearings, or bushings in recesses provided for them in machin'ehousings, andv this invention is particularly applicable to magnetoswherein a thin and fragile lining to the recess,such as a strip of paper curved into the form of a cylindrical collar is used to, separate. the periphery of the outer race of the ball-bearing from the interior surface ofthe recess. It will become obvious to all whom may be versed in mechanic arts, that while we describe the constructionwand use of our invention particularly in relation to the seating of ball-bearing races in magneto housings, our inventionis broadly applicable to the seating of bushings and other cylindrical bodies that are to be forced into recesses lined with thin and fragile material. We therefore wish it to be understood that we do not limit our invention to. the particular application described. i

The first object of :our improvement is to devise a means of holdin and supporting i the thin and fragile paper lining to the ballbearing recess in a magneto housmg, in order to prevent any crumpling or bucklmg of the lining while forcing theiouter race of the ballbearing to a seat. i

The second .ob'ect of our invention is to devise a means of seating a race or bushing in a position not easy to get at, such as in I r ferentially in a man-nerherea erdes'cribed,

the thin paper lining of the bearing recess previously mentioned, while the race of the ball-bearing is being forced to aseat.

We attainthe second object of our invention by devising a positioning appliance which permits inserting and releasing the supporting ring for service in a remote position in a magneto housing.

The third object of our invention is attainedby so designing the handle of the positioning appliance that it may be utilized as a pressure arbor or as a puller forcarryon.the; final operation of forcing the ba ll-bearin outer race to a firm seat.

In the rawings forming a part of this specificationlike characters of reference indicate corresponding parts in all views. The thickness of paper in the drawings has been greatly exaggerated and in those drawlngs' wherein "paper strips or washers are shown in cross-section, these cross-scctions are indicated by heavy black lines.

'Fig. 1 shows diagrammatically, a magneto housing with an outer race of a ball-bearing seated in a paper-lined recess at the closedover end5F1g. 2 shows one form ofour invention; Fig. 3 shows a second form of our invention; Fig. 4 shows our invention being ing recess in a magneto housing} Fig 5 shows elements of our appliance being used c as a puller to draw the ball-bearing race to a final seat; Fig. 6 shows elements of our appliance being used as a pressure arbor instead of a puller in forcing the race to a seat; Fig. 7. shows a third form of our invention; Fig. 8 shows certain elementsof the third form which may be utilized as arbor or puller; and Fig. 9 shows a washer used on the arbor in 8.

In order to obtain a perfectly clear understanding of our invention, it is necessary before describing its construction, to describe the process and mechanical difliculties met in carrying through the process of inserting abearing race before we devised.

hole 0!. A ball-bearing outer race is shown at .e. The race is supposedly a tight fit within the paper stripf encircling it, which in turn is tightly fitted in the bearing recess g. The race e also fits snugly against. the

paper washer it. Therefore the raceisielect-rically insulated from the interior of the recess, andis firmly fixed in position; Heretofore ithas beencustomary to first place thapaper washer h in position in the housmg recess 9 and then curl up a piece of i race was being pushed in to a seat.

paper in the form of a cylindrical collar and set it in place in the recess with a long pair of pliers. It has been common to cut the paper strip wider than necessary so that when curled up and set in place, a part of it would project inwardly in the magneto housing and because of this projection, the tendency of the paper to crumple or buckle would be lessened when the ball-bearing To force the race into the paper-lined recess, an arbor has been used to the end of which the bearing race would be attached with vaseline or similar gummy substance, and then carefully shoved into the paper-lined recess. The difficulty however, was as inferred. The paper would slip out of alignment and then crumple so that the operation would have to be repeated again with a new strip of paper and so on until successful.

We are now prepared to describe our invention. One of the principal and most essential elements of our invention is the ring i shown in Fig. 2. This ring 2' is made sufliciently small in exterior diameter to permit its passing within the interior of the magneto housing a shown in Fig. 1. The interior diameter of the ring 71 is made slightly larger than the interior diameter of the recess g in the magneto housing a. The width of the ring 7: should not be less than the width of the bearing race e for practical reasons which will be clearly un derstood further on. j is a washer fittin tight against ring 2'. Through holes in 7, pass the long slender screw rods k and I, each of which is threaded, provided with a nut and screwed into tapped holes in ring 2'. It is obvious that the rods Is and Z may be unscrewed from 7' thus releasing ring 2'. It will be apparent to many mechanics that there are numerous well-known contrivances bywhich the ring 71 may be readily attached and detached from washer j, of which the pair of screw rods k and Z are but a single illustration. The member m n.--0 of Fig. Qhas a shoulder 71. and a reduced portion 0 provided with a thread. The diameter of 0 is less than the diameter of the armature shaft hole in a magneto housing. The washer j is held in position on 0 by being locked between nuts p and g.

A second form of our invention embracing identical essential elements as that shown in Fig. 2, is shown in Fig. 3. It will be observed that in this form the washer j corresponding toj in Fig. 2, is shownpcrmanently attached to the large end m of the member m--n'-o' by a cap screwr. It will be observed in Fig. 3, that if the device he cut in two at line my, the two portions thus formed consist of the paper supporting ring i and placing elements m, j, k, Z, and race puller elements n, o and g We mention this division of this form will be used in succession in performing the service for which each is designed.

The third form of our invention illustrated in Fig. 7, is but a variation of that shown in Fig. 2, which would be an obvious development to anyone skilled in the art had they seen the form shown in Fig. 2. In this form in Fig. 7, the central screw rod 0" is of uniform length throughout. The mechanical effect of the shoulder n of Fig. 2, is attained in Fig. 8, by using'the washer t backed up by a nut screwed back to the extremity of the thread.

The use of our appliance is as follows: The paper strip to be used as a lining to the recess in the magneto housing, is first cut to such a size that when rolled about the circumference of the bearing race, the two endsot the strip will nearly touch, as indicated along the center line in Fi 4, where the strip is shown at s. The wi th of the paper strip is made sli htly less than the sum of the width of t e race e plus the width of the ring i.

Having any one of the three forms of'our appliance completely assembled as illustrated in Fig 2, Fig. 3, or Fig. 7 .the mechanic curls up the paper stri and places it in the cup formed by ring 2 and washer As the interior dimension of the ring is slightly in excess of that of the bearing ".2

recess in the magneto housing, the mechanic has no difliculty now in pressing the ballbearing race (2 down in the curled-up paper collar. The mechanic now places washer h in the recess g. He then grasps the end of our appliance opposite the cup and using this end as a handle he passes the cup containing the paper and race inside the magneto housing and presents it to the recess for the race. Now by watching through the shaft hole d,he can by a little careful manipulation, guide the paper collar projecting from the cup, into the bearing recess. In Fig. 4 the paper is shown almost in position.

Now the mechanic unscrews the rods in and Z and removes these together with the handle portion of the appliance and the washer j thereto attached, thus leaving the paper lining in place in the recess, the race ready for entry into its final position and the supporting ring 2' surrounding the part of the paper lining projecting inwardly from the recess. It is optional whether the mechanic choose to pull therace to a snug seat in the recess or whether he press it to a seat. In Fig. the race is shown as pulled half way to its final position, while in Fig. 6, the race is shown in a similar position but having been pushed to this position by using elements of our appliance as anarbor used in ill) llU

conjunction with a press of some sort. Such mechanical operations are so well known that further detailed description is unnecessary. Having seated the race, the ring 2' isshaken out and the excess paper torn away and removed. a a i In practice it will be found desirable to furnish a complete set of elements to fit different sizes of ball-bearing races. To do so, we provide auxiliary washers such as t shown in Fig, 9, which may he slipped on to the central rod of any of the three forms shown, thereby changing the effective diameter of the particular element used to press against the raceand force it to a seat.

In relation to'the effectiveness ofour invention, we find that the paper will not a stiffening action on the paper lining being rigidly supported by that part extending into the holding ring. In addition, as the race starts to move into position, it begins to press tightly outward in all directions againstthe paper lining thus locking it from Lil slipping. As the race advances further, it is still being held in alignment by the supporting ring. i

From thetfore oing, it will be obvious that the essence 0 our invention lies in providing a circumferential mechanical support to the paper collar so that. this collar in entirety is substantially prevented from accidental distortion from cylindrical form during the seating operation. Hence we claim this principle broadly in oneof our claims which follow. A

1. Means of seating the outer race of a ball-bearing in the recess provided therefor in a magneto housing wherein the recess is lined witha strip of' paper or other thin material curled into the form of a wide cyv lindrical collar, comprising the combination of a ring with a puller, the ring having a cylindrical interior of approximately the same diameter as that otthe housingirecess and a width approximately equal to. thatof the-outer race, the wide cylindrical collar beingo't sufficient size to line both the recess and the ring when the ring is placed in a framing position against the border of the recess preparatory tothe, seatingof the race, the puller being devised to apply power to the periphery of theouter race of the ball-bearing and slide it axially along the interior of the wide cylindrical collar from an initial preparatory position in the ring to a final seated position within the housing recess the-particular purpose of the ring being to prevent slipping of the lining paper of which the wide cylindrical in a magneto housing wherein said recess is lined with a strip of paper or other thin material curled into the form of a wide cytlindrical collar, comprising the combination of a ring with an arbor and a press, the ring having a cylindrical interior of approximately the same diameter as that of the housing recess and a width approximately equal to that of the outer race, the wide cylindrical collar being of suflicient size to line both the recess and the ring when the ring is placed in a framing position against the border of the recess preparatory to the seating ofthe race, the arbor and press being arranged to apply power to the periphery of the outer race of the ball-bearing and slide it axially along the interior of the wide cylindrical collar from an initial preparatory position in the ring to a final seated position within the housing re,-

ccss; the particular-purpose of the ring be ing to prcventslipping of the lining paper of which the wide cylindrical collar is composed by affording to it asubstantial circumferential support during the seating operation.

3. Means ofseating from a remote position the outer race of a ball-bearing in the recess provided therefor in amagneto housing wherein said recess is lined with a strip of paper or other thin material curled into the form of a wide cylindrical collar, comprising the combination of a ring with a handle and a puller, the ring having a cy lindrical interior of approximately the same diameter as that of the housing recess and a Width approximately equal to that of the outer race, the wide cylindricatcollar being ofisutlicient size to line both the recess and the ring when the ring isplaced in a framing position against the border of the recess preparatory to the seating ofthe race, the handle being devised for attachment .to and detachment from the ring for the purpose of placing the, ring in the preparatory position, the puller being devised to apply power to the periphery of the outer race of the ball-bearing and slide it axially along the interior of the wide cylindrical collar from aninitial preparatory position in the ring to a final seated position within the housing recess; the particular purpose of the ring being to prevent slipping of the lining paper ofwhich the wide cylindrical collaris composed by atlording to it a substantial circumferentialsupport during the seating operation.

4; Means of seating from a remote position the outer race of a ball-bearing in the recess provided therefor in a magneto housing wherein said recess is lined with a strip of paperor other thin material curled into the form of a wide cylindrical collar, comprising the combination of a ring with a handle and an arbor and a press; the ring having a cylindrical interior of approximately the same diameter as that of the housing recess and a width approximately equal to that of the outer race, the wide cylindrical collar being of slulicient size to line both the recess and the ring when the ring is placed in a framing position against the border of the recess preparatory to the seating of the race, the handle being devised for attachment to and detachmentfrom the ring for the purpose of placing the ring in the preparatory position, the arbor and press being arranged toapply power to the periphery of the outer race of the ball-bearing and slide it axially along the interior of the wide cylindrical collar from an initial preparatory position in the ring to a final seated position within the housing recess; the particular purpose of the ring being to prevent slipping of the lining paper of which the wide cylindrical collar is composed by affording to it a substantial circumferential support during the seatingoperation.

5. A detachable handle for use in combination with the ring specified in claim 3, and

' for the purpose therein set forth, comprising a long heavy rod provided with a long threaded portion at one end and provided with nuts mounted thereon, a large washer mounted on and perpendicular to the rod and locked between and by the nuts thereon, a plurality of long slender rods each provided with a thread at one end and a small stop-nut thereon, the said rods being devised to temporarily attach the large washer to the ring specified in claim 13, by passing the threaded ends of the slender rods through small holes provided at intervals near the periphery of the large washer and screwing them into small tapped holes provided for them in the side of the ring.

6. A puller for use in combination with the ring specified in claim 3, and for the purpose therein set forth, comprising a long heavy rod provided with a long threaded portion at one end and provided with nuts thereon, a large washer mounted on and perpendicular to the rod and between the nuts thereon, and a pressure washer of slightly less diameter than the outside diameter of the ball-bearing outer race being seated, also mounted on the rod and between the nuts thereon, the pressure washer being used to apply power to the outer race and move it to its seated position, and one of the nuts and long threaded portion being used to put tension in the rod required for moving the race to its seated position in the manner set forth. I

7. Means of seating a bushing in the recess provided therefor in a machine housing or frame wherein the recess is lined with a. wide collar of thin and fragile material, comprising the combination of a ring with a forcing appliance, the ring having an interior of approximately the same form and dimensions as the recess in the frame, the wide collar of lining material having a size suflicient to form a lining to both the recess and the ring when the ring is placed in a framing position against the border of the recess preparatory to the seating of the bushing, the arrangement and purpose of the forcing appliance being to apply power to the bushing and move it axially along the interior of the wide collar from an initial preparatory position in the ring to the final seated position in the frame recess; the purpose of the ring being to prevent slipping or crumpling of the fragile material of which the wide collar is composed by affording to it a substantial circumferential support during the seating operation.

8. Means of seating the outer race of a. ball-hearing in the recess provided therefor in a magneto housing wherein the recess is lined with a strip of paper or other thin material curled into the form of a wide cylindrical collar, comprising the combination of a circumferential supporting member with a forcing appliance, the circumferential supporting member having a cylindrical interior of a diameter approximately equal to that of the housing recess, the wide cylindrical collar being of sufficient size to form a lining to the housing recess and extend as alining also to the interior of the circumferential supporting member when this member is placed in a framing position against the border of the recess preparatory to the scating of the race, the arrangement and purpose of the forcing appliance being to apply power to the periphery of the outer race of the ball-bearing and move it axially along the interior of the wide collar from an initial preparatory position in the circumferential supporting member to the final seated position in thehousing recess; the purpose of the circumferential supporting member being to prevent slipping or crumpling of the material of which the wide collar is composed by affording centripetal pressure against it during the seating operation.

Signed at 112 East 16th Street, Chicago, 111., July 27, 1926.

ANDREW o. LYEN. CHARLES w. MORGAN. 

